[Qt-creator] optimization and file size between versions

[Duane]

On 9/27/2013 9:43 AM, Ziller Eike wrote:
>
> On 27.09.2013, at 14:52, Duane <duane.hebert at group-upc.com> wrote:
>
>> On 9/27/2013 8:21 AM, Orgad Shaneh wrote:
>>>
>>> בתאריך 2013 9 27 15:15, מאת "Duane" <duane.hebert at group-upc.com
>>> <mailto:duane.hebert at group-upc.com>>:
>>>>
>>>> I have Qt Creator version 2.7.2 and am using Qt 4.8.4.  My colleague has
>>>> Qt Creator version 2.4.1 and is using Qt 4.8.1.  We are both running the
>>>> Fedora 16.  We use the same project file and this project doesn't use
>>>> the Qt libs.
>>>>
>>>> The .pro file has
>>>> TEMPLATE = app
>>>> CONFIG += console
>>>> CONFIG -= qt
>>>>
>>>>
>>>> When he builds he gets an executable 1.5Mb.  When I build, I get an
>>>> executable of 10.6Mb  Both are release builds.  We both use the same
>>> libs.
>>>>
>>>> What can cause this?  How is optimization done here?  We build the same
>>>> project for Windows in Visual Studio and the exe files are the same size
>>>> but we've set the same optimization.
>>>>
>>>> _______________________________________________
>>>> Qt-creator mailing list
>>>> Qt-creator at qt-project.org <mailto:Qt-creator at qt-project.org>
>>>> http://lists.qt-project.org/mailman/listinfo/qt-creator
>>>
>>> Can you paste the build output for both machines? A single file gcc
>>> invocation and a single linker invocation should be enough (if the
>>> project is not very complex).
>>>
>>
>>
>> This would be quite a bit.  It's not a simple project.  But I have tried
>> a few things.  My Qt Creator SDK installation installed Qt 5.1.  So I
>> switched the kit to use this.  My build size goes from 10.6Mb to 8.6Mb.
>>   This was surprising.  So then I found my older version of Qt 4.8.1.  I
>> switched to that one and my file size becomes the same as my Colleague.
>>   1.5Mb.  So it's definitely the Qt version affecting this.  AFAIK these
>> versions were installed with Qt Toolkits and not build manually.  So I'm
>> not sure what the difference would be.  I would maybe understand this is
>> I was using any Qt libs but we're not for this application.  Make flags
>> look the same on the two systems.  I don't get it.
>
>
> debug vs release build maybe?
>

I started to say no, but then again when I switch from release to debug 
the file size doesn't change.  Something is broken here.  But when I 
switch to 4.8.1 things seem ok.  I am currently building 4.8.5 to try 
that and see if it makes a difference.